Leaf turner



June 23, 1925.

F. R. CHESTER LEAF TURNER Filed Dec. 27.

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F. R. CHESTER I LEAF TURNER 3 sheets shetvs Filed Dec. 27, 1923 IIWEITOII IZEChzaszzna Patented June 23,

PATENT orrica.

FRANK B. CHESTER, NEW YORK, N. Y.

Lmr roam Application filed December 27, 1928. Serial 1T0. 683,062.

To all whom it may concern Be it known that I, FRANK R. Gnns'rna,

a citizen of the United States, and a resident of the city of New York, borough of Manhattan, in the county and State of New York,- have invented a new and Improved Leaf Turner, of which the following is a full, clear, and exact description.

The present invention relates to new and useful improvements in leaf turners, and it pertains more particularly to leaf turners of the mechanlcal type.

It is one of the objects of the present invention to provide a new and improved leaf-turning mechanism which will serve to sin ly turn the leaves in one direction and which will operate to turn all of the leaves in a single operation in the opposite direction.

It is a further object of the invention to construct the mechanism in such a manner that the leaves are all turned in one direction to close the books automaticall after they have been singly displayed y the mechanism.

It is a further object of the invention to provide a continuously operating mechanism whereby the leaves are successively singly displayed and moved to closing position, and the operation is automatically repeated.

It is a further object of the invention to provide a device of this character which is used as a display device for advertising purposes, and while the invention is primarily intended for this use, it is capable of use in other. connections, such as turning the leaves of music books, magazines, or the like.

With the above and other objects in view, reference is had to the accompanying drawings, in which- Figure 1 is a view in front elevation of a device constructed in accordance with the present invention;

Fig. 2 is a side edge view thereof looking from the left in Fig. 1;

Fig. 3 is a detail view in elevation, a portion of the device being broken away in order to more clearly set forth the mechanism thereof Fig. 4 is a horizontal sectional view taken on the line 4 -4 of Fig. 3;

Fi 5 is a detail sectional View taken on the line 5-5 of Fig. 4;

Fi 6 is a detail sectional view taken on the hue 66 of Fig. 4.

Referring more particularly. to the drawings, the device comprises a book rest 10, and carried by the book-rest 10, there are suitable supporting base members 11, arranged preferably one at each end of the book-rest and serving as a means for supporting the device. The book-rest 10 is provided with a shelf 12 on its front face, upon which a book Bis adapted to be supported.

Carried by the'rear face of the book rest 10, there is an upper bearing 13 and a lower bearing 14, and mounted in these hearings and occupying a substantially vertical position, there is a shaft 15. The upper end of the shaft 15 is provided with a collar 16, having an arm 17 projecting therefrom, and such collar 16 is secured to the shaft 15 by means of a set screw, or the like, 18. The lower end of the shaft 15 carries a collar 19 secured thereto by means of a set screw 20, and loosely mounted upon the shaft 15 and supported by the collar 19, there is a plurality of collars 21, 22, 23, 24 and 25. Mounted above the collar 25 and secured to the shaft 15. by means of a set screw 26, there is a collar 27. Each of these collars 21 to 25, and 27 is provided with an arm 28, which extends rearwa-rdly, and the arm of each collar is angularly disposed with respect to each of the remaining arms in such a manner that the arms will occupy vertical positions in staggered relation to one another.

Secured to the collar 27 and operating therewith and projecting from a point approximately diametrically opposite to the arm 28 of the collar 27, there is an arm 29 provided with a vertical extension 30. Projecting from the collar 25 there is a similar arm 31 having a vertical extension 32, and. projecting from the'collar 24 there is a similar arm 33 having a vertical extension 34. Projecting from the collar 23 there is an arm 35 having a vertical extension 36; projecting from the collar 22, there is an arm 37 having a vertical extension 38, and projecting from the collar 21, there is an arm 39 having a vertical extension 40, this last construction being shown in Figs. 3 and 4. Each of these vertical extensions 30, 32, 34,. 36, 38 and i0 is slotted as at 41 to receive the leaves of a book, it bein understood, however, that the slots 41 in t e vertical extensions 39 and 40 of the arms 29 and 39, respectively, are adapted to receive the covers of the The normal position of the arms 29, 31, 33, 35, 37 and 39 is upon the r ght-hand side of the device, in which positlon they are shown in Fig. 1, and they are adapted to move from the right-hand side to the lefthand side in order to open a book and successively turn the leaves thereof. The mechanism by which the arms are moved from the right-hand side to the left-hand side to successively turn the leaves of the book, will now be described:

Secured to the rear of the book-rest 10, there is a U-shaped frame 50, said frame being fastened to the book-rest by means of bolts, or the like, 51. Carried in this U- shaped frame there is a supplemental frame 52 secured thereto as at 53, this lastmentioned frame being substantially L- shaped. Mounted in these frames 50 and 52 there is a shaft 54, and secured to the forward end of the shaft 54, there is a wheel 55, such wheel 55 having a pluralityof arms 56, 57, 58, 59, and 61 projecting radially therefrom. These arms 56, 57, 58, 59, 60 and 61 are of different lengths, the arm 56 being the shortest and the arm 61 being the longest. The arms are of a length whereby they will engage successively the arms 28 of the several collars 21, 22, 23, 24, 25 and 27, respectively, in o-r- 'dor that the arms 29, 31, 33, 35, 37 and 39 of such collars may be moved from the right-hand position to the left-hand position.

Mounted on the rear end of the shaft 54, there is a disk 62, and such disk carries on its rear face a pin or projection 63, the purpose of which will be hereinafter described. Carried by the shaft 54 intermediate the wheel 55 and the disk 62, there is a worm wheel 64, and meshing with the worm wheel 64 there is a. worm gear 65, which in turn is carried by a shaft 66 mounted in the l.- shaped frame 52. This shaft 66 carries, near its right-hand end, a worm wheel 67 and meshing with the worm wheel 67, there is a worm gear 68 carried by a shaft 69 mounted in the U-shaped frame 50 and an Lshaped frame 70 carried by the U-shaped frame 50 and secured thereto as at 71. Mounted on the shaft 69, there is a pulley 72, and passing around the pulley there is a belt 73, which also passes around a pulley 74 on the shaft of a motor 7 5, preferably of the electric type. The motor 75 is supported by a bracket, or the like, 76, secured as at 77 to the ill-shaped frame 50 heretofore mentioned.

Carried by the U-shaped frame 50, there is a stud 76, and pivotally mounted on such stud 78, there is a vertically extending rod 79. The lower end of this rod is bent, as at 80, and again as at 81, and has its lower extremity 82 in the path of travel of the stud 63 carried by the disk 62. This construction is more clearly shown in Fig. 5. A stud 83 is provided with which the rod 79 engages, as designated by the reference character 84 in Fig. 4.

The arm 17 heretofore mentioned as projecting from the collar 1.6, normally occupies a position to the left in Fig. 4, as designated by dotted lines in such figure, and is adapted to move from the dotted-line position to the full-line position upon operation of the cover when the shaft 15 is rotated.

The device operates in the following manner:

With the parts in the position shown in Fig. 1, when the motor 75 is started, the shaft. 54 will be driven through the medium of the pulleys 72 and 74 and the belt 73, the shaft 69, worm gear 68, worm wheel 67, shaft 66, Worm gear 65, and worm wheel 64. As the shaft 54 is rotated, the wheel 55 is rotated therewith and the arm 56 of the wheel engages the arm 28- of the collar 27. As the wheel 55 continues to rotate, the shaft 15 is rotated and the arm 29 is moved to position at the left of the device, in which position it. is shown in Fig. 4. As the shaft 15 is rotated, the arm 17 is moved from the dotted-line position shown in Fig. 4 to the full-line position shown in Fig. 4 and into engagement with the vertically-extending rod 7 9. As the motor continues to operate the shaft 54, the arm 57 of the wheel 55 engages the arm 28 of the collar 25 and moves the arm 31 thereof to the left-hand side of the device and turns over the first leaf of the hook, it being-understood that the several collars 25. 24, 23, 22 and 21 are loosely mounted on the shaft- 15. This operation is continued until all of the leaves have been turned and all of the arms 29, 31, 33, 35, 37 and 39 occupy a position on the left-hand side of the device.

Upon further operation of the shaft 54 by the motor 75, the projection 63 of the disk 62 will engage the lower extremity 82 of the rod 79 and will move the same from the full-line position shown in Fig. 4 to the dotted-line position shown in such figure, and as the arm 17 is secured to the shaft 15, in its movement from the right to the left it will rotate the shaft 15. Inasmuch as the collar 28 of the arm 29 is secured to the shaft, it will serve to move all of the arms 31, 33, 35, 37 and 39 to the right in order that the operation may again be carried out to successively display the leaves of the book.

It is to be understood that the several leaves are printed with Suitable advertising matter, and that through the medium of the rotation obtained by the worm gears, the leaves are turned, the intervals of lapsed time between the turning of the leaves being sufficient to permit of a reading of the advertising matter carried thereby. 1

From the foregoing it is apparent that the present invention provides a new and improved advertising device, erate to successively display a pluralit of leaves, which may be printed with a vertising matter, and that after all of the leaves have been displayed, the device resets the several leaves in order that the operation of singly displaying the leaves may again be carried out. This operation is continued as long as the motor is driven.

What is claimed is: 1. In a leaf turner, a plurality of leafturning arms, means for successively operating said leaf-turning arms 1n one direct1on, and means for moving all of said leaf-turning arms simultaneously in the opposite direction, said last-mentioned means being automatic in its operation by continued movement of the first-mentioned operating means. i

2. In a leaf turner, a plurality of leafturning arms, continuously rotating means adapted to move the arms to turn the leaves singly in one direction, and means operated by the continuously rotating means for simultaneously operating all the arms in the opposite direction.

3. In a leaf-turing mechanism, a bookrest, a shaft carried thereby, a leaf-turning element adapted to engage a portion of the book and secured to said shaft, a plurality of loosely mounted leaf-turning elements freely rotatable on said shaft, means for engaging the first-mentioned leaf-turning element tooperate the same and through its medium operate said shaft, means for successively operating the loosely mounted leaf-turning elements, and means for simultaneously operating the loosely mounted leaf-turning elements and the fixed leafturning element in a direction opposite to that in which they were first operated.

which will op- 4. In a leaf turner, a book-rest, a vertically extended shaft carried thereby, a plurality of leaf-turning elements carried by one end of.the shaft, one of said leaf-turning elements being fixed thereto, an arm carried by the opposite end of the shaft and fixed thereto, means for engaging the fixed leaf-turning element to operate the same and the shaft, said means also successively operating the loose leaf-turning elements, and means for engagement with the arm mounted upon the end of the shaft opposite to that on which the leaf-turning elements are carried to operate the fixed leafturning element and the loose leaf-turning elements simultaneously, as and for the purpose set forth.

5. In a device of the character described, a. plurality of swinging arms constituting leaf-turning elements, continuously rotating means for successively swinging said arms in one direction, and means for simultaneously swinging said arms in the opposite direction and operated from the continuously rotating means without changing its direction of rotation.

6. In a leaf turner, a book rest, a shaft carried thereby, a plurality of leaf-turning arms loosely mounted on said shaft, a bookcover-engaging member rigidly carried by the shaft, means for singly operating the leaf-turning arms upon said shaft, and

means for operating the shaft to operate the book-cover-engaging member subsequently to the operation of the leaf-turningarms.

7. In a leaf turner, a book rest, a shaft carried thereby, a plurality of leaf-turning arms loosely mounted on said shaft, a bookcover-engaging member rigidly carried by the shaft, means for singly operating the leaf-turning arms upon said shaft, and means for operating the-shaft to operate the book-cover-engaging member subsequently to the operation of the leaf-turning arms, said last-mentioned means being operable from the first-mentioned operating means.

FRANK R. CHESTER. 

